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revision 1.1792 by gforget, Thu Dec 27 14:16:49 2012 UTC revision 1.1985 by jmc, Tue Apr 29 21:16:20 2014 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o verification/offline_exf_seaice :  o model/src: for atmosphere in p* coords:
8      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
9      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
10        but not yet activated.
11    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
12      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
13      - this changes the results (but not for any verification experiment, because
14        none tests this), but avoids having an extra field in the restart files
15    o pkg/seaice: remove global variable TICE (not needed)
16      - replace by TICES or local variable where necessary (cost_seaice_test,
17        seaice_diagnostics_state)
18      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
19      - use specific read/write routines for reading and writing individual leves
20        of a multilevel field
21    o pkg/ctrl & model/inc:
22      - move additional anomaly fields of control vars (related to options:
23         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
24        from DYNVARS.h into new header file: CTRL_FIELDS.h
25    o pkg/seaice: some small modifications to the ridging code
26      - make fw2ObyRidge a global variable and add the freshwater flux to
27        seaice_growth
28      - pass actual thickness from seaice_prepare_ridging, so that it is
29        computed only in one place and compute it in the same way as in
30        seaice_growth
31      - initialise more fields in seaice_do_ridging that where cause floating
32        point exceptions over land
33    o pkg/seaice: preparations for ridging code and first real ridging code
34      - move most of "PART 1" of S/R seaice_growth into a new and separate
35        S/R seaice_reg_ridge that will both regularize the state variable after
36        advection call the actual ridging routine;
37      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
38        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
39      - remove ridging code from seaice_advdiff
40      - clean up remaining part 1 of seaice_growth in an attempt to make it
41        more readable (this is probably subjective)
42      - call seaice_itd_redist once in the initialisation phase to have the initial
43        conditions in the correct category
44      - finally: add new ridging routine for ITD code
45    
46    checkpoint64v (2014/04/11)
47    o pkg/ecco:
48      - add runtime parameters mdt[start,end]date[1,2]
49      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
50    o pkg/seaice:
51      - make deltaC a global variable, so that it can be used in ridging code
52      - first step towards ridging: introduce new routines that compute
53        ice strength based on ridging parameters
54      - add diagnostic for HSNOWITD
55      - add opnWtrFrac as a global variable (required for ridging scheme)
56    o pkg/salt_plume + pkg/seaice/seaice_growth.F
57      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
58        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
59    o verification/hs94.1x64x5:
60      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
61      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
62    o autodiff:
63      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
64        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
65        For now, only in pkgs used in verification/hs94.1x64x5.
66      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
67        which are specific to TAF/TAMC).
68      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
69        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
70        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
71      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
72        building mitgcmuv_ad (make adAll).
73    o pkg/ecco:
74      - cost_gencost_seaicev4.F:
75         reformulate proxy cost as function of sst and local param SEAICE_freeze
76         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
77      - add stop statement if old names siv4-[sst,vol] are used
78      - add snapshots + cost reports for atmospheric longwave
79      - remove factor 0.1 in front of wtau[u,v]
80      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
81         ALLOW_TMI_SST_COST_CONTRIBUTION
82    o pkg/atm_phys:
83      - add some diagnostics for Short-wave and for convection S/R.
84    o pkg/seaice/seaice_growth:
85      - fix a bug in the lateral melt parameterization for SEAICE_ITD
86        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
87      - rearrange loop order for better vector code in the same code block
88      - rewrite the floeDiameter formula to have fewer divisions
89      -  (miraculously) none of this changes the results of seaice_itd
90    o pkg/smooth:
91      - move param smooth2Ddiffnbt to pkg/ecco
92    o pkg/salt_plume:
93      - salt_plume_frac.F:
94         clean up local param names
95         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
96    o pkg/rw:
97      - add RS version of S/R READ_MFLDS_LEV.
98    o pkg/streamice:
99      - fix the restart test by writing/reading pickup_streamice files.
100    o pkg/seaice:
101      - refine checks for jfnk-related parameters
102      - comment out if statement with SEAICEuseIMEX parameter as long as there
103        is no IMEX code to avoid confusion and surprises
104    
105    checkpoint64u (2014/03/07)
106    o verification/MLAdjust:
107      - rename secondary test suffix:
108         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
109         0.leithD -> AhFlxF  + switch to flux-form
110         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
111         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
112    o pkg/mom_vecinv:
113      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
114        to be before mom_calc_visc.F)
115      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
116      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
117        this is simpler for the adjoint and for diagnostics.
118    o model/src + pkg/momentum:
119      - add input files for  2-D additional Western and Southern cell-edge wall
120         (e.g., to add "thin-wall" where it is =1).
121      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
122        using 2nd hFacZ that is computed from initial (fix domain) hFac
123      - known limitations of thin wall implementation: not yet coded for sigma
124        coords; not working with CD-scheme neither.
125    o pkg/seaice:
126      - rename recently introduced parameters from (wrong name) AB to
127        BDF (backward difference time discretisation)
128      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
129    o tools/adjoint_options:
130      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
131    
132    checkpoint64t (2014/02/01)
133    o pkg/ecco
134      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
135        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
136      - replace hard-coded record number and period which only work for monthly
137        with read-in runtime param that works for other periods (month,day,year)
138    o pkg/thsice
139      - corrected store directive fixes thsice adjoint gradient checks
140    o genmake2 & testreport:
141      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
142        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
143        Update testreport accordingly. No need to set "export OPENAD=true"
144        in adjoint_options/adjoint_oad anymore (will be removed later).
145    o pkg/shelfice:
146      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
147        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
148        so that surface forcing applies to k=kSurf if using pkg/shelfice.
149    o pkg/ctrl, pkg/grdchk, pkg/ecco:
150      - Changes to make GENARR more modular (i.e. invisible if not used)
151    o model/src/temp_integrate.F and salt_integrate.F
152      - re-include store directives that were removed on Dec 27th.
153    o model/src/external_forcing_surf.F
154      - add storage directives for EmPmR and PmEpR to avoid recomputation of
155        seaice_model in the adjoint that is problematic when seaice_model is
156        turned off in the adjoint. The resolved issue dated back to July when
157        EXTERNAL_FORCING_SURF call was moved.
158        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
159    o pkg/exf/exf_check.F
160      - fix a small bug again (originally found by Wentao Liu, now found again)
161      - streamline error output
162    o pkg/streamice and aim_v23:
163      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
164        Apple's /usr/bin/cpp knows what to do:
165        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
166        Target: x86_64-apple-darwin13.0.0
167    
168    checkpoint64s (2014/01/05)
169    o tools/adjoint_options:
170      - switch to fastopt.net TAF server (instead of default fastopt.de) for
171        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
172    o model/src:
173      - remove some unnecessary TAF storage directives in forward_step.F and
174        in dynamics.F (note: not always removed by TAF, e.g., double storage
175        of kappaRU,kappaRV in former version of dynamics.F).
176    o model/src & pkg/ptracers:
177      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
178        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
179        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
180      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
181      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
182      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
183    o useSingleCpuInput separates single-CPU input from single-CPU output;
184        for now only implemented for in exf_interp_read.F
185    o verification/advect_xy:
186      - fix missing EXCH call in local version of ini_salt.F and update output.
187    o momentum diagnostics:
188      - fix which deltaT is used in Total-Tendency diagnostics.
189      - fix typo in diagnostics for momentum tendency from AB.
190    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
191        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
192    
193    checkpoint64r (2013/12/08)
194    o verification/*/results:
195      - Update reference output of experiments that were passing with just 13 digits
196         (make it easier to detect future changes in results)
197    o model/src & pkg/ptracers:
198      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
199        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
200        to inside ptracers_integrate.F ; remove ptracers_advection.F
201    o coupling interface pkgs:
202        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
203      - change the config check to test the agreement of Ocean Depth
204        with ATM land/sea mask (instead of ATM orography);
205      - send to coupler the number of coupler time-steps to do for this run:
206        this allows to check for consistency and don't need anymore to be
207        specified in parameter file "data";
208      in coupler:
209      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
210      - improve report to log-file of config setting (pass log-file unit to few S/R)
211    o pkg/compon_communic:
212      - add coupling send/receive for non-tiled integer vector;
213      - add S/R to check and stop if any proc has an error (similar to
214        eesupp/src/stop_if_error.F but single thread and across Comm_World).
215    o pkg/exch2:
216      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
217        through list of all tiles my proc owns.
218    o model/src:
219      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
220        from rTrans) to simplify dependencies (no need to store rTrans anymore in
221        calling S/R); this affects AD results at machine truncation level:
222        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
223        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
224    o tools/build_options:
225      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
226    o coupling interface pkgs:
227        [compon_communic, atm_compon_interf & ocn_compon_interf]
228      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
229        to each S/R that needs it; remove un-used variables.
230      - change component tile registration (cpl_register.F in both compon_interf
231        and mitcomponent_tile_register.F) to pass the full list of tiles
232        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
233      - with pkg/exch2: adopt the same convention used for I/O to define mapping
234        towards coupler global array (unless W2_useE2ioLayOut=F):
235         a) can now use different tiling between atm & ocn comp.
236         b) no needs to modify the run-Off map when changing tiling (was needed
237            even if using the same tiling between atm & ocn).
238         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
239            full land tiles); not yet tested.
240      - check for valid mapping from comp. tile to coupler global array
241      - improve report of tile registration results to log file.
242    o pkg/exch2:
243      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
244        tile-registration (CPL_REGISTER);
245      - activate (un-comment) definition and setting of "W2_tileIndex" list to
246        store the local bi,bj indices of each tile;
247      - also print bi,bj in local report to log file;
248      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
249        Jun 2009 modif of pkg/exch2).
250    o testing on baudelaire:
251      - run 2 tests at a time: no significant slow down (since enough cpu) and
252        get the full set of test done earlier
253      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
254    o model/src/thermodynamics.F and routines called from it:
255      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
256        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
257        velocity (outp) by adding bolus velocity.
258      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
259        mass transport from velocity + lateral grid cell area
260      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
261      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
262     in thermodynamics.F
263      - remove k from thermodynamics.F and move it to temp_integrate.F
264        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
265        loop).
266      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
267        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
268        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
269        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
270      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
271        global_ocean.90x40x15, tutorial_global_oce_biogeo and
272        tutorial_tracer_adjsens (+ TLM output).
273    o tools/OAD_support and (verification/*/) code_oad:
274      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
275        module conversion ; remove unneeded CPP_EEOPTIONS.h.
276      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
277        version (closer to model/inc/CPP_OPTIONS.h).
278    o model/src:
279      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
280        retired list of parameters (routine FREEZE has been replace by surface
281        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
282    o pkg/gmredi:
283      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
284        velocity (same scheme but affects machine truncation) for GM_AdvForm.
285      - update output of FWD experiments: front_relax.bvp,
286        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
287    
288    checkpoint64q (2013/11/17)
289    o verification:
290      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
291        tutorial_global_oce_biogeo and global_ocean.90x40x15.
292      - generate new output (growth & melt) for seaice_itd experiment after
293        updating the input pickup_seaice files (previously wrong).
294    o pkg/cost:
295      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
296        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
297        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
298          cannot be applied to var in common block).
299        o allows to get results independent of tile-per-proc setting (if using
300          slower GLOBAL_SUM_SEND_RECV option).
301      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
302        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
303        forward gradients: update output).
304      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
305        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
306    o pkg/mom_common:
307      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
308        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
309        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
310        ensure that all field value that are used are set.
311    o tutorial_deep_convection (smag3d):
312      - add missing scaling in mom_calc_smag_3d.F;
313      - set smag3D_coeff in input.smag3d such that results do not change.
314    o pkg/dic:
315      - change dic_cost.F to compute cost on each tile first and then apply
316        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
317        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
318      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
319    o eesupp/src & pkg/mdsio:
320      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
321        (from pkg/mdsio) since they are no longer used for tape IO.
322      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
323        (+ keep a copy in pkg/atm_ocn_coupler).
324    o verification/isomip:
325      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
326    o tools/build_options:
327      - optfile linux_amd64_ifort11, fast (no ieee) case:
328        to get a working restart for all experiments, add "-fp-model source"
329        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
330    
331    checkpoint64p (2013/10/20)
332    o pkg/autodiff:
333      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
334        criteria, return to simple (default) tape IO format.
335    o pkg/mdsio (+ eesupp/src):
336      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
337        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
338      - fix globalFile and singleCpuIO options using simpler global mapping.
339      - new pairs of scatter/gather vector S/R (one for each type, generated from
340        template) corresponding to simpler global mapping.
341      - adread_write.F: switch to new S/R (but leave old calls commented) and write
342        to globalFile when parameter globalFiles is set to True.
343      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
344    o pkg/autodiff:
345      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
346        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
347        missing, just add a STOP if array type do not match.
348    o pkg/exf:
349      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
350         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
351         and rename array obsSIce to exf_iceFraction.
352    o tutorial_deep_convection:
353      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
354        for now all in this exp. code dir.
355      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
356        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
357    o eesupp/src:
358      - added SINGLE_DISK_IO option because reading of parameter files on
359        very large number of processors did not work with existing set-up
360    
361    checkpoint64o (2013/09/25)
362    o pkg/atm_phys & atm_compon_interf:
363      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
364    o tools/build_options:
365      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
366        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
367        remove CPP setting (was identical to genmake2 default).
368    o pkg/gmredi & model/src: Some updating and work done on the residual model.
369      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
370      - fixed up the calculation of the eddy stress and how it is added to the
371        external forcing via taueddy_external_forcing.F
372      - at the moment, it is very experimental and only works with the variable eddy
373        diffusivity calculated in gmredi_k3d.F
374    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
375        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
376    o testreport (& tools/do_tst_2+2):
377      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
378    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
379      - remove CPP='cpp -traditional -P' (this is genmake2 default)
380      - add switch (for big setups) to use 'medium' memory-model (but leave it
381        commented out for now). Note: needed with FC 19 to compile big setups.
382    o pkg/atm_compon_interf:
383      - regroup per field origin (model & pkgs) the coupling storage routines
384         (which accumalate in time each coupling field)
385      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
386        update accordingly + simplify aim_do_physics.F
387    
388    checkpoint64n (2013/08/26)
389    o pkg/bbl:
390      - update formulation to reduce dispersion of tracer properties in bbl
391      - replaced horizontal and vertical transport parameters with velocities
392      - changes results for verification/global_with_exf.yearly
393    o verification/halfpipe_streamice:
394      - change to matrix construction; update both Fwd & AD output.
395    o verification/tutorial_tracer_adjsens:
396      - OpenAD test: switch to vector-invariant momentum since fluxform with
397        rStar causes problems with OpenAD; update output.
398    o tools:
399      - genmake2: define a common prefix for all temp-file names ; move them
400        to local /tmp disk (but would be easy to move them back);
401      - xmakedepend: apply the same switch for temp-files.
402    o pkg/offline:
403      - changes for use with rStar (NLFS): assume that we continue to provide
404        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
405        output files) and apply r* scaling at each time-step (function of the time
406        varying Eta field); use normal pickup files (needed for restart with NLFS).
407    o adjoint with OpenAD:
408      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
409        package openad.  This package has to be compiled for all runs with OpenAD
410        instead of specifying code_oad_all as a modification directory.
411      - link the fortran templates from tools/OAD_support to the build directory
412        for preprocessing to avoid conflicts between different setups compiled
413        simultaneously and simplify cleanup.
414    o pkg/exf:
415      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
416        main model or other pkgs are exchanged in EXF_MAPFIELDS).
417    o model/src:
418      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
419        (similar to do_fields_blocking_exchanges.F).
420    o tools/genmake2:
421      - remove TAF output src code just before calling staf (when not doing a fresh
422        built, will stop if things go wrong with staf).
423      - fix target "adobj" (left from TAF version-2 transition)
424    o pkg/diagnostics:
425      - add a parameter to track the status of pkg/diagnostics activation;
426        this replace/extend the use of logical param "settingDiags" (to check
427        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
428        New S/R to print error message and stop when pkgStatus is not right.
429      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
430    
431    checkpoint64m (2013/08/13)
432    o model/inc:
433      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
434        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
435    o pkg/kpp & aim_v23:
436      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
437    o pkg/seaice:
438      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
439        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
440      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
441    o eesupp/src:
442      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
443        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
444    o switch to TAF version-2:
445      - add flow directives to "freeze" naming convention for ad-routines that
446        are used in I/O routines of adjoint state and associated common blocks
447        that are used in adcommon.h (backward compatible with version-1)
448      - update all ad-optfiles (in tools/adjoint_options + few local to some
449        verification exp) to switch to latest TAF version (currently 2.5.5);
450        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
451        out except for diva).
452      - the major change with TAF version-2 is that both the differentiated
453        routines and the forward routines (new) are returned as part of the TAF
454        output source code. Update genmake2 accordingly.
455      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
456        with version-2 when compared to TLM or FWD gradient); other experiments
457        output show minor changes (machine truncation level); update the few AD &
458        TLM output with 12 matching digits only (some prior to version-2 switch).
459    
460    checkpoint64l (2013/08/05)
461    o model/src:
462      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
463      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
464        when using TAF but only if using OpenAD.
465    o pkg/mom_common+fluxform+vecinv:
466      - always set horiz. viscosity arrays to background value before calling
467        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
468        only when using variable horiz. viscosity (useVariableVisc=T);
469      - simplify mom_vecinv.F (only 1 block for momViscosity).
470    o pkg/mom_common: variable horiz. viscosity in NH code
471      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
472        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
473      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
474        useBiharmonicVisc & useVariableVisc.
475      - fix old bug (already in 1rst implementation of variable horizontal viscosity
476        in calc_gw.F, version 1.27, 2006/06/20):
477        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
478        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
479      - change background horiz viscosity in vertical momentum (gW) to always be
480        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
481        any type of variable viscosity, e.g., viscAh/4Grid)
482      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
483        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
484        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
485        default viscAh,viscA4 is zero).
486    o model/src:
487      - extend length of drC & recip_drC from Nr to Nr+1.
488    o Divided Adjoint (DIVA) with MPI:
489      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
490      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
491        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
492    
493    checkpoint64k (2013/07/23)
494    o tools/OAD_support:
495      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
496        and remove it from genmake2.
497    o tools/build_options:
498      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
499        MPI_HEADER_FILES list (let genmake2 find the missing headers)
500    o verification/halfpipe_streamice:
501      - change to driving stress formulation; update both Fwd & AD output.
502    o tools/genmake2 and Divided Adjoint with MPI:
503      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
504      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
505      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
506        Makefile, which is set by genmake2, and check which mpi-headers are needed.
507        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
508      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
509    o testreport:
510      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
511        perform additional runs (number of additional runs is "add_DIVA_runs" taken
512        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
513    o verification/lab_sea (AD test):
514      - change to test Divided Adjoint Run in this set-up (both standard AD test
515        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
516    o pkg atm_ & ocn_compon_interf:
517      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
518        staggerTimeStep implementation) and disable (retired) corresponding
519        parameter.
520    o pkg/offline:
521      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
522      - add S/R OFFLINE_CHECK to print offline parameter summary
523        and stop if loading a file that is not used;
524      - enable to calculate GMRedi tensor, KPP mixing and convective index
525        when the corresponding file(s) is/are not specified (but pkg is used).
526      - comment out resetting of monitorFreq (to endTime) since it still useful
527        for monitoring CFL numbers and checking offline fields.
528    o OpenAD:
529      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
530        smaller standard output) and generate new (smaller) output (on baudelaire
531        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
532    o model/src:
533      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
534        (where external_forcing_adjust was called) and change list of arguments;
535      - merge external_forcing_adjust.F into external_forcing_surf.F
536      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
537        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
538        previously in file "balance_relax.F", now removed); remove corresponding
539        arrays in FFIELDS.h.
540      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
541        a hack for getting back surfaceForcingS (loaded from file) when using
542        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
543      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
544        (was getting only 11 digits for AD-grad, due to different truncation
545         error in AD code).
546    
547    checkpoint64j (2013/07/04)
548    o pkg/offline:
549      - to enable the use of other features with pkg offline (e.g., obcs),
550        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
551      - comment out "allowFreezing" (now active) in 2 offline testing exp.
552    o pkg/exf ALLOW_RUNOFTEMP
553      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
554      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
555      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
556    o pkg/atm_phys:
557      - allows to add some damping on uVel,vVel (strength only function of k).
558    o verification, ad-tests:
559      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
560        global_ocean_ebm and offline_exf_seaice.thsice.
561    o verification/halfpipe_streamice:
562      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
563        flux input boundary conditions to be ignored; a fix for this bug changed
564        verification results for forward test.
565      - add adjoint test.
566    o pkg/ptracers:
567      - allow to restart without SOM pickup (resetting SOM to zero).
568    o pkg/gmredi:
569      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
570      - It uses mixing length theory and suppression by steering level effects to
571        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
572        to JPO, for more details).
573      - It also uses the diffusivity to calculate an eddy induced streamfunction
574        based on a PV closure (rather than a buoyancy closure as in GM).
575      - New files added to pkg/gmredi:
576        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
577          induced overturning streamfunction (called from gmredi_calc_tensor)
578        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
579          for use in gmredi_k3d
580        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
581          the eddy diffusivity
582    
583    checkpoint64i (2013/06/18)
584    o pkg/cheapaml:
585      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
586        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
587        with pkg/cheapaml.
588    o utils/python: add subpackage for cubed sphere function, first example is
589        simple cs.pcol to plot 2D fields on a map
590    o pkg/streamice:
591      - This is a new package in MITgcm, which solves dynamic equations for ice
592         sheets and ice streams
593      - At the moment it is independent of atmosphere/ocean dynamics, or any
594        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
595        ed that this will change)
596      - There is a new verification exercise that tests it, halfpipe_streamice,
597        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
598        rectangular embayment
599      - halfpipe_streamice is forward-only for now, will have TAF test soon
600      - for questions, email dgoldber@mit.edu
601    o pkg/thsice:
602      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
603        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
604      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
605         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
606      - allow precip from pkg/cheapaml to make snow over seaice.
607    o pkg/cfc:
608      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
609      - remove atmos CFC 2-D arrays from common bloc (now local variables)
610      - change some hard-coded constant to run time parameter for reading and
611        and interpolating atmospheric CFC ; keep same default as previously.
612      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
613      - put arguments in standard order: myTime, myIter, myThid
614      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
615        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
616      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
617      - new routine to print summary of CFC params and check for consistency.
618    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
619      similar to thsice_advdiff.
620      Note that for the B-grid case the routine parameters uc/vc are overwritten.
621    o pkg/cfc:
622      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
623        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
624      - fix interpolation of atmphspheric CFC between Sorthern and Northern
625        hemisphere value.
626    o pkg/seaice:
627      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
628    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
629                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
630      - requires an additional time level that is stored in the pickup
631      - you can start with AB2 from a pickup without this time level with
632        pickupStrictlyMatch = .false.
633    
634    checkpoint64h (2013/05/26)
635    o pkg/cheapaml:
636      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
637        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
638      - consistent treatment of uWind,vWind location: assume everywhere in
639        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
640        (Note: was already the case for Tair,Qair advection);
641        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
642      - compute diabatic forcing only in the interior (excluding overlap regions)
643      - fill in array "Qsw" (for short-wave heating);
644      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
645        before any update (consistent with MITgcm state var diagnostics);
646      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
647        non periodic ; + adjusted for uWind,vWind (C-grid).
648    o pkg/seaice:
649      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
650        add explicitly pkg/exf in experiments that currently use pkg/seaice.
651      - allows to compile pkg/seaice without pkg/exf.
652    o tools/OAD_support:
653      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
654        of array "ourStepOf" in function rvNextAction (revolve.F90).
655    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
656      - change pkg name (to be used with other atmospheric physics pkg)
657        but by-pass CVS when making the new pkg so that we keep the CVS history.
658    o pkg/offline:
659      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
660        (previously called from pkg/dic_surfforcing_init.F)
661    o model/src:
662      - re-order sequence of calls within packages_init_variables.F, using
663        standard order, except for:
664         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
665         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
666    o new pkg: atm_phys
667      - add entry point and source code (previously in contrib
668          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
669        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
670      - re-order sequence of calls within packages_readparms.F,
671         packages_init_fixed.F and packages_write_pickup.F
672        (but skip packages_init_variables.F because of TAF issues).
673      - update contrib/*/atm_gray/ experiment.
674    o pkg/seaice (ITD code):
675      - simplify and fix the writing of pickup-files for ITD case
676    o pkg/seaice (ITD code):
677      - introduce floe size dependent lateral melt for ITD case;
678      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
679      - update seaice_itd experiment main output.
680    o pkg/thsice:
681      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
682        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
683        changed accordingly pkg/atm2d.
684    
685    checkpoint64g (2013/05/01)
686    o pkg/exf ALLOW_RUNOFTEMP
687      - if defined,  river and glacier runoff temperature can be read-in from
688        runoftempfile; runoftempfile needs to have same format as runofffile
689    o pkg/thsice (& pkg/bulk_force):
690      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
691        for energy content of Precip + RunOff & Evap (like with pkg/exf).
692      - change computation domain to always be the interior (without overlap).
693      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
694    o verification/tutorial_global_oce_biogeo:
695      - add preliminary OpenAD setup (still has problems)
696    o pkg/seaice:
697      - turn some parameters for choosing the convergence criterion of
698        the inexact Newton method (JFNK) into runtime parameters for convenience
699      - clean up seaice_calc_viscosities.F: remove/retire two options for
700        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
701        the results of lab_sea/input because a division has been replaced by
702        a multiplication with the reciprocal (sumNorm)
703      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
704        convergence of solver (changes results, of course), and to test some
705        new features
706    o model/src:
707      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
708      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
709      - move forcing adjustment (balancing surface forcing) in specific S/R
710        where might also be applied exchanges (if needed) to forcing arrays.
711    o pkg/shelfice:
712      - allow to specify the Ice-Shelf mass per unit area (instead of
713        shelficeLoadAnomaly) and do the conversion from one to the other
714      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
715        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
716        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
717        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
718      - update isomip experiment forward output (get machine truncation error
719        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
720    o verification/offline_exf_seaice:
721      revise data.seaice in input.thermo and input_ad and update results accordingly
722        HO = 0.2, SEAICE_areaLossFormula = 2,
723        SEAICE_growMeltByConv = .TRUE.,
724        SEAICE_doOpenWaterMelt = .TRUE.,
725      Improve consistency with input.thsice and fix the spurious 500m ice corners
726    o verification/global_ocean.cs32x15:
727      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
728        in icedyn (thsice+seaice-dyn) test and update output.
729    o verification/offline_exf_seaice:
730      - adjust list of tested variables (with testreport) and update
731        standard test output with better slection of monitored fields.
732    o pkg/cd_code:
733      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
734        experiment lab_sea.hb87
735    o tools/genmake2:
736      - change default makedepend from the system default to tools/xmakedepend:
737        When no makedepend is specified, select tools/xmakedepend it the test pass,
738        otherwise select the system default (if exist and pass the test) or
739        try to build cyrus-makedepend ; stop if none of the 3 works.
740    o pkg/exf & pkg/thsice:
741      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
742        for energy content of Precip + RunOff & Evap. Assumes:
743       1) Rain has same temp as Air.
744       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
745       3) Run-Off comes at the temp of surface water (with same Cp)
746       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
747        put directly into Latent Heat flux & should use water-vapor heat capacity.
748       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
749        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
750    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
751        (compile when SEAICE_ALLOW_JFNK is defined)
752    o pkg/thsice:
753      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
754        implementation): move THSICE_AVE call after the advection (called directly
755        from thsice_do_advect.F).
756    o verification/global_ocean.90x40x15 and OpenAD:
757      New experiment for OpenAD is identical to the one in input_ad except that
758        multiDimAdvection=.FALSE.,
759      There is still an issue with this.
760    o pkg/thsice:
761      - account for ice velocity (ocean relative velocity) in turbulent heat flux
762        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
763        and offline_exf_seaice (main test).
764    
765    checkpoint64f (2013/03/31)
766    o verification/OpenAD:
767      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
768    o verification/isomip, pkg/shelfice and OpenAD:
769      - add OpenAD setup to this exp and make shelfice package work with OpenAD
770    o verification/tutorial_global_oce_biogeo:
771      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
772    o verification/offline_exf_seaice:
773      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
774    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
775      - add OpenAD setup to this exp and make ptracers package work with OpenAD
776    o pkg/seaice/seaice_evp.F:
777       mask the asymmetric contribution of the ice-ocean stress (when
778       the turningAngle is non-zero) over open water to avoid stripes
779       in the EVP-solutions after many EVP-substeps. This does not change
780       the verification experiment (because turningAngle=0 in that experiment),
781       but will affect other EVP solutions with turningAngle.ne.0
782    o verification, AD & TLM output:
783      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
784        additions and multiplications which affect results at machine truncation
785        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
786        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
787        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
788        digits of matching.
789    o pkg/seaice:
790       modify lsr-algorithm so that it vectorizes AND converges by using a
791       "zebra" method: split vector loop into two with step size 2; this
792       solves a general convergence problem for the JFNK solver on a vector
793       computer. It has the potential to even improve convergence for
794       non-vector machines, but it does change the results so it is turned
795       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
796       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
797    
798    checkpoint64e (2013/03/05)
799    o pkg/ecco and several verification experiments:
800       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
801       from ecco package, and revert to unified routine in model/src/
802       Adjust verification experiments accordingly, especially gloal_oce_llc90
803       Should conclude long-standing work by Gael to reconsile the_main_loop with
804       ECCO and will enable OpenAD's revolve loop in ECCO setup.
805    o pkg/generic_advdiff:
806      - implement compressible flow method for multi-dim advection (similar to
807        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
808        TAF generates many recomputations) to use it; no yet coded with implicit
809        vertical advection.
810      - change experiment advect_cs (new output) and advect_xy (same output)
811        to test compressible flow multi-dim advection.
812    o pkg/generic_advdiff:
813      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
814        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
815    o pkg/seaice:
816      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
817        bug affects two verification experiments (lab_sea and lab_sea.hb87),
818        recover old (wrong) results by setting noSlipFac = 2. in
819        seaice_calc_strainrates.F;
820      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
821      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
822        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
823      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
824    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
825      - new subroutines seaice_lsr_tridiagu/v
826      - introduce loop bounds i/jmin/max to be able to use a restricted
827        additive Schwarz method, but not used for now.
828      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
829      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
830    o OpenAD support
831       Reorganize S/R call for overall time-stepping loop to facilitate
832       OpenAD revolve loop replacement
833       (new S/R main_do_loop.F)
834    o model/src:
835      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
836      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
837        ADAMS_BASHFORTH2.
838    o pkg/cheapaml:
839      - add new parameter (default=F, same as before) to disable full domain
840        (including land) periodicity in X & Y dir.
841      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
842        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
843        into single S/R CHEAPAML_TIMESTEP.
844    
845    checkpoint64d (2013/02/17)
846    o pkg/monitor (angular momentum):
847      - do not add Eta contribution to the total AM if using rigid-lid;
848      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
849      - horizontal discretisation: compute Zonal wind contribution separately for
850        each component (instead of from cell centered averaged) and use the 4
851        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
852      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
853        FreeSurf) if using vectorInvariant momentum.
854    o model/src (horizontal grid):
855      - move initialisation of all horizontal grid arrays to null value
856        from specific horizontal grid S/R to main S/R INI_GRID;
857      - add 2 new arrays to project model C-grid velocity on to zonal direction
858        (similar to AngleCosC & -AngleSinC but at U and V point location) and
859        compute them in S/R CALC_GRID_ANGLES.
860    o pkg/seaice: replace a hard coded parameter by a runtime parameter
861        SEAICE_JFNK_tolIter
862    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
863        preconditioner for JFNK (run LSR into the overlaps as far as possible,
864        i.e OLx/y-2, but overwrite the solution in the overlaps)
865      - extend loop range in seaice_calc_viscosity
866      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
867      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
868      - slightly modify loops in tridiagonal solver lsr-preconditioner
869      - by default remove the extra exchange in seaice_preconditioner with a
870        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
871      - modify offline_exf_seaice so that old results without RAS are reproduced
872        for output.dyn_jfnk.txt
873      in seaice_fgmres.F (unrelated to RAS)
874      - add a cpp-flag option for a re-ordered mapping (potentially more
875        efficient), but because this changes the results, turn it off by
876        default
877      - replace the save statement by local common blocks
878    o utils/matlab:
879      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
880      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
881        instead of local script "load_cs.m".
882    o pkg/seaice:
883      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
884        to the scalarProductMetric and the unrolling. By chance this does not
885        change the verification experiment, because of the particular domain
886        decomposition
887    o pkg/diagnostics:
888      - change default missing_value from UNSET_RL to -999.
889    o pkg/layers: improve vectorization of layers_fluxcalc.F
890      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
891        time spent in this routine by more than a factor of 3 on an NEC-SX8
892      - step 2: replace search algorithm by a bisection algorithm found in
893        Press et al. Numerical Recipes in Fortran. This algorithm can be
894        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
895        For now, use this algorithm only for TARGET_NEC_SX defined.
896      - moved the search algorithm into a separate subroutine, that is kept
897        within the same file for automatic inlining.
898      - modified catching potential errors
899    o pkg/ecco:
900      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
901    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
902      - modifications for ALLOW_GENTIM2D_CONTROL
903      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
904      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
905      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
906      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
907    o model/src:
908      - account for moist thermodynamics in (dry) potential temperature equation;
909        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
910        and cpl_aim+ocn.
911      - also switch to standard compiler (gfortran, was using ifort previously)
912        for fizhi-cs experiments reference output.
913    o pkg/ctrl:
914      - 1st step toward generic time-varying control variable (2D) via CPP option
915        ALLOW_GENTIM2D_CONTROL
916      - note new namelist ctrl_nml_genarr in data.ctrl
917    o verification/global_ocean.cs32x15:
918      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
919        thsice calling sequence and update "output.icedyn.txt" output file.
920    o pkg/ptracers:
921      - from Ryan A.: code to allow to restart a tracer at regular time interval
922        specifying a reset frequency and a reset-phase (for each tracers).
923    o pkg/thsice:
924      - implement new sequence of calls for thsice+seaice:
925          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
926          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
927      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
928        in CPP_OPTIONS.h) to recover old sequence;
929      - update diagnostics for Intermediate State thsice diagnostics: now filled
930        just before advection (instead of just after advection in old sequence);
931      - update output of experiment offline_exf_seaice (standard test);
932      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
933        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
934    o pkg/aim_v23:
935      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
936      - use standard pkg/mdsio routines to read & write CO2 pickup file;
937      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
938      - Implement new sequence of calls for seaice advection (with thsice and
939        seaice diffusion): do ice advection after ice-Thermodynamic (previously
940        was done before); change aim_do_physics.F (split the bi,bj loops block);
941      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
942    o pkg/thsice:
943      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
944        where just seaice diffusion is used without seaice-dynamics.
945    
946    checkpoint64c (2013/01/18)
947    o pkg/seaice:
948      - add a parameter JFNKres_tFac that can replace JFNKres_t
949        (= JFNKres_tFac*JFNKresidual before JFNK solver)
950      - add a line search option to the JFNK solver
951      - move update of u/vIce and computation of initial residual into a separate
952        routine (same file); makes the code a little easier to read (?)
953      - the line search requires computation of the residual and for some reason
954        I cannot do the update of u/vIce at the beginning of the Newton loop
955        without changing the results, so we move computation of the new residual
956        also to the end of the Newton loop, even without the line search
957    o pkg/mdsio:
958      - write missing value (corresponding to undefined array value) to meta files;
959        skip this if missing value is one (UNSET_RL would be a better value for the
960        case of undefined missing value but it's current the default missing-value);
961        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
962    o pkg/exf & thsice:
963      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
964        diagnostics) even when SHORTWAVE_HEATING is #undef;
965    o verification/cfc_example:
966      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
967        illustrate how to use it).
968    o verification/offline_exf_seaice:
969      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
970        files to only one time-record.
971      in input.thermo: narrow the 2 bands of low initial ice-concentration near
972        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
973        snapshot output; same mcPheePiston value as in thsice with
974        surf-current=0.2m/s.
975      in input.thsice: similar set-up as in input.thermo (channel with same seaice
976        initial conditions).
977    o verification/cfc_example:
978      - update file "data" with more standard choice (default rotationPeriod,
979        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
980        set deltaTFreeSurf to deltaTtracer) and update the output.
981    o pkg/layers:
982      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
983      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
984    o verification/offline_exf_seaice:
985      - set all {field}period to zero for constant-in-time forcing (not tested
986        anywhere else).
987    o verification/offline_exf_seaice:
988      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
989      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
990    o model/src:
991      - implement Finite-Volume method for (hydrostatic) presure gradient
992        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
993    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
994      - In order to be compatible with the default EVP code, this requires changing
995        the EVP code around a little; and because any small change immediately
996        breaks the lab_sea.hb87 verification experiment, the reference output is
997        updated two times (each time the remaining aggrement was only 2 digits):
998        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
999        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
1000        The adjoint test lab_sea.evp also needed to be updated.
1001      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
1002        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
1003        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
1004        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
1005        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
1006        kept obscure, because I need to test it a little more.
1007    o pkg/cheapaml:
1008      - fix few incorrect type (_RL/_RS) in subroutine calls.
1009    o pkg/seaice:
1010      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
1011        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
1012    o model/src:
1013      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
1014        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
1015        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
1016    o pkg/cheapaml:
1017      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
1018        update output of experiment cheapAML_box.
1019      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
1020        and set them only in one place (cheapaml_readparms.F).
1021      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
1022      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
1023        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
1024    o model/src/the_main_loop.F:
1025      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
1026    o pkg/seaice:
1027      - remove legacy branch code.
1028      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
1029    o verification/*/code*/SEAICE_OPTIONS.h:
1030      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
1031        SEAICE_CAP_HEFF).
1032    o pkg/cheapaml:
1033      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
1034        to load new forcing fields.
1035      - add missing "_d 0" where it's needed; + some editing (improve indentation).
1036      - remove switch to "-r8" compiler option (no longer needed) in verification
1037        cheapAML_box, keep same output (small trucation error differences).
1038    o verification/offline_exf_seaice:
1039    - add thermodynamics only test.    - add thermodynamics only test.
1040    o verification/cheapAML_box:
1041      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
1042        keep same output (same 14 digits for cg2d).
1043      - switch on "-r8" compiler option (some numerical values are missing
1044        the "_d 0") and update output (only 6 digits for cg2d were preserved).
1045    
1046  checkpoint64b (2012/12/24)  checkpoint64b (2012/12/24)
1047  o pkg/cheapaml:  o pkg/cheapaml:

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